Patents by Inventor Gopal M. Chopra

Gopal M. Chopra has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for producing improved gelatine explosive compositions
    Patent number: 4233095
    Abstract: A process is disclosed for preparing a gelatine explosive composition comprising the steps of adding at least one dispersing agent to a mixture of liquid nitric esters and ortho-nitrotoluene, adding the resulting mixture to blasting soluble nitrocotton to form a gel and subsequently adding oxidizing salts, fuels, and when desired, a water-proofing agent such as tamarind seed flour or guar gum to form a homogeneous mixture.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: November 11, 1980
    Assignee: Indian Explosives Limited
    Inventors: Bidhan C. Ghosh, Gopal M. Chopra, Soumendra N. Sen
  • Gelatine explosive compositions
    Patent number: 4180425
    Abstract: A new gelatine explosive composition is disclosed comprising mixtures of nitric esters, ortho-nitro-toluene, blasting soluble nitrocotton, oxidizing salts, fuels and at least one dispersing agent. Said gelatine explosive composition is markedly reduced in the quantities of liquid nitric esters and blasting soluble nitrocotton content.
    Type: Grant
    Filed: July 21, 1978
    Date of Patent: December 25, 1979
    Assignee: Indian Explosives Limited
    Inventors: Bidhan C. Ghosh, Gopal M. Chopra, Soumendra N. Sen